package com.wyz.dao;

import com.wyz.pojo.Department;
import com.wyz.pojo.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

//员工dao
@Repository //被spring托管
public class EmployeeDao {
    //模拟数据库中的数据
    private static Map<Integer, Employee> employees;
    //员工所属部门
    @Autowired
    private DepartmentDao departmentDao;
    static {
        employees = new HashMap<Integer, Employee>();
        employees.put(1001,new Employee(1001,"张三","1212@qq.com",1,new Department(101,"市场部")));
        employees.put(1002,new Employee(1002,"李四","2222@qq.com",0,new Department(102,"营销部")));
        employees.put(1003,new Employee(1003,"王五","3333@qq.com",1,new Department(103,"开发部")));
        employees.put(1004,new Employee(1004,"赵六","4444@qq.com",0,new Department(104,"运营部")));
        employees.put(1005,new Employee(1005,"孙七","5555@qq.com",1,new Department(105,"后勤部")));
    }

    //主键自增 模仿数据库主键
    public static Integer initId = 1006;
    //增加一个员工
    public void save(Employee employee){
        if (employee.getId() == null)
            employee.setId(initId++);
        employee.setDepartment(departmentDao.getDepartmentById(employee.getDepartment().getId()));
        employees.put(employee.getId(),employee);
    }
    //查询全部员工
    public Collection<Employee> getAllEmployees(){
        return employees.values();
    }
    //通过id查询员工
    public Employee getEmployeeById(Integer id){
        return employees.get(id);
    }
    //删除一个员工
    public void delete(Integer id){
        employees.remove(id);
    }
}
